assertion  retraction  graph  subject    predicate        object     datatype    annotation
1          0           graph  DOID:3593  rdfs:subClassOf  DOID:4085  _IRI        
1          0           graph  DOID:4085  oio:id           DOID:4085  xsd:string  
1          0           graph  DOID:3590  rdfs:subClassOf  DOID:4085  _IRI        
1          0           graph  DOID:4084  rdfs:subClassOf  DOID:4085  _IRI